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// SPDX-License-Identifier: GPL-2.0+
/*
* Fixed-Link phy
*
* Copyright 2017 Bernecker & Rainer Industrieelektronik GmbH
*/
#include <config.h>
#include <common.h>
#include <malloc.h>
#include <phy.h>
#include <dm.h>
#include <fdt_support.h>
DECLARE_GLOBAL_DATA_PTR;
int fixedphy_probe(struct phy_device *phydev)
{
struct fixed_link *priv;
int ofnode = phydev->addr;
u32 val;
/* check for mandatory properties within fixed-link node */
val = fdt_getprop_u32_default_node(gd->fdt_blob,
ofnode, 0, "speed", 0);
if (val != SPEED_10 && val != SPEED_100 && val != SPEED_1000) {
printf("ERROR: no/invalid speed given in fixed-link node!");
return -EINVAL;
}
priv = malloc(sizeof(*priv));
if (!priv)
return -ENOMEM;
memset(priv, 0, sizeof(*priv));
phydev->priv = priv;
priv->link_speed = val;
priv->duplex = fdtdec_get_bool(gd->fdt_blob, ofnode, "full-duplex");
priv->pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "pause");
priv->asym_pause = fdtdec_get_bool(gd->fdt_blob, ofnode, "asym-pause");
/* fixed-link phy must not be reset by core phy code */
phydev->flags |= PHY_FLAG_BROKEN_RESET;
return 0;
}
int fixedphy_startup(struct phy_device *phydev)
{
struct fixed_link *priv = phydev->priv;
phydev->asym_pause = priv->asym_pause;
phydev->pause = priv->pause;
phydev->duplex = priv->duplex;
phydev->speed = priv->link_speed;
phydev->link = 1;
return 0;
}
int fixedphy_shutdown(struct phy_device *phydev)
{
return 0;
}
static struct phy_driver fixedphy_driver = {
.uid = PHY_FIXED_ID,
.mask = 0xffffffff,
.name = "Fixed PHY",
.features = PHY_GBIT_FEATURES | SUPPORTED_MII,
.probe = fixedphy_probe,
.startup = fixedphy_startup,
.shutdown = fixedphy_shutdown,
};
int phy_fixed_init(void)
{
phy_register(&fixedphy_driver);
return 0;
}
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